baber/WOPTO huggingface dataset:
Patent JP-H1137794-A (JP)
Title: Direct resolver for digital converter
Inventor: VLAHU SASO P
IPC: G01D5/245
Filed: 1998-05-11
Abstract: PROBLEM TO BE SOLVED: To provide a direct resolver with higher resolution by deciding an octant value based on sine value and cosine value of a resolver, obtaining tangent value for linearization of the octant value, inverting a linearized value of even numbered octant, and adding the octant value to the linearized value. SOLUTION: A sine signal and a cosine wave signal are generated respectively at stationary secondary coils 14 and 15 of a resolver 10, then, through buffers 20 and 30, differential amplifiers 21 and 31, phase decoders 22 and 32, and filters 23 and 33, converted with A/D converter 24 and 24. A microcomputer 12 compares the sine value and cosine value, then compares polarity and relative magnitude for deciding an octant value. Between the sine value and the cosine value, one with smaller absolute value is divided by one with larger absolute value to obtain a tangent value, and corrected to the close to a linear value against an angle θ with an index table, and an eventual value against the angle θis decided using the octant value.  The linear value of even number octant value is inverted, while 3 bit code value of octant taken as highest-order 3 bit, which is added to a linear value as lowest-order bit.
Patent JP-S5651650-A (JP)
Title: Magnetic resonance frequency measuring instrument using synchronous esaki diode oscillator
Inventor: AMAYA KAZUO
IPC: G01R33/36
Filed: 1979-10-03
Abstract: PURPOSE: To measure a resonance frequency with high precision by using an Esaki- diode oscillator synchronized with a frequency-modulated signal having the output signal of an external oscillator with a high frequency stability as a center frequency.  
     CONSTITUTION: The output of oscillator 1 is modulated by frequency modulator 2 to obtain a frequency-modulated wave whose center frequency is determined by the oscillation frequency of oscillator 1. When Esaki-diode oscillator 3 is adjusted so that a self-excited oscillation frequency close to a resonance frequency can be obtained, this oscillator oscillates synchronizing with the frequency-modulated wave modulated by frequency modulator 2. The output of this oscillator 3 is phase- detected by phase detector 4 by the frequency-modulated wave and on the basis of the detection output, the oscillation frequency of voltage control variable frequency oscillator 1 is controlled. This oscillation frequency is invariably equalized to the resonance frequency, and consequently this oscillation frequency is measured by a counter, so that the resonance frequency can be found with precision. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S61286037-A (JP)
Title: Casting method for lead alloy
Inventor: HAYASHI YUJI
IPC: B22C3/00
Filed: 1985-06-12
Abstract: PURPOSE:To make infrequent the renewal of a casting mold and to improve the productivity by continuous operation by using the casting mold laminated with a layer consisting of inorg. powder and arom. polyimide and a layer consisting of the inorg. powder and glass on the inside metallic surface of the casting mold. CONSTITUTION:Two layers; the layer 3 consisting of silica powder 5 and arom. polyimide part 6 and the layer 4 consisting of boron nitride powder 7 and glass part 8 are lined in the inside surface of the metallic part 1 of the casting mold. The melt of a lead alloy contg. antimony is poured into such casting mold under prescribed melt temp. and mold temp. and a grid, etc. are continuously cast by using such casting mold. The improvement of the working efficiency of the lead alloy casting is made possible if the above-mentioned casting mold is used.
Patent JP-S61285899-A (JP)
Title: Piezoelectric vibrator
Inventor: HORIIKE SUMIO
IPC: H04R17/00
Filed: 1985-06-12
Abstract: PURPOSE:To improve the efficiency of an assembling work by having an insulating material film in which the through hole for fitting the piezoelectric element and the through hole for connecting the lead wire are provided in the electrode film and fitting the piezoelectric element and the lead wire at respective through holes of the insulating material film. CONSTITUTION:On the upper surface of a diaphragm 1, an electrode film 2 is formed. On the upper surface of the electrode film 2, a fitting hole 10 to fit a piezoelectric element 6 and an insulating material film 12 having a connecting hole 11 of a lead wire 7 at one place of the side end part are formed. The fitting hole 10 of the piezoelectric element 6 provided at the insulating material film 12 is formed to the size which can insert the piezoelectric element 6, and a lead wire connecting hole 11 is kept to the size in which the sufficient quantity of soldering 13 or the conductive adhesives 3 can be used to connect the lead wire 7. Thus, a worker can easily and rapidly fit the piezoelectric element 6 and the lead wire 7 at the prescribed position.
Patent JP-H01297258-A (JP)
Title: Driving method for ink jet recorder
Inventor: AOKI ATSUSHI
IPC: B41J2/055
Filed: 1988-05-25
Abstract: PURPOSE:To improve frequency responsibility, discharge stability, gradation, and a recording system, by a method wherein an electric signal to be supplied to a piezoelectric signal applies a second pulse wave when a certain time has elapsed after application of a first pulse wave, and fall time of the pulse wave is altered by temperature. CONSTITUTION:When a length of a recording head part reflecting a pressure wave to be generated from an arranged part of a piezoelectric element 2 is taken as l and acoustic velocity in ink is taken as C, an electric signal to be supplied to the piezoelectric element 2, when 2l/C has elapsed after application of a first pulse wave discharging an ink drop from a discharge port 4, applys a second pulse wave of almost the same form as the first pulse wave. A first positive pulse wave is for the purpose of discharging the ink drop, and the second pulse wave is for the purpose of cancelling a negative pressure wave when the positive pressure wave generated by the first pulse wave reciprocates through a nozzle 1 in ink and returns as the negative pressure wave (after 2l/C has elapsed). Breaking time of the pulse wave is controlled according to ambient temperature, for instance, at short breaking time tau1 for high temperature and at long breaking time tau2 for low temperature.
Patent JP-H07336889-A (JP)
Title: Terminal equipment for outputting load cut-off signal of demand controller
Inventor: SASAKI KENJI
IPC: H02J3/00
Filed: 1994-06-09
Abstract: PURPOSE:To improve a power conservation effect by utilizing the automatic load cut-off function of a demand controller while flexibly corresponding to various conditions on the load side. CONSTITUTION:A load cut-off signal output circuit has switches SW2, SW3, by which signal response modes at a time when load cut-off signals are output to external output terminals OUT1-OUT3 in response to load cut-off command signals CUT1-CUT8 can be selected and set from two or more of prepared signal response modes, and a signal response mode control means outputting the corresponding load cut-off signals to the external output terminals in the signal response modes set by the switches.
Patent JP-H01251330-A (JP)
Title: Multibeam light pickup
Inventor: MAEDA IKUO
IPC: G11B7/135
Filed: 1988-05-25
Abstract: PURPOSE:To make environmental resistance and durability excellent and to attain high reliability by halving reflected light from a record carrier, detecting a magneto- optical signal and a focus servo signal by the one separated luminous flux and detecting a track servo signal to two spots by the other luminous flux. CONSTITUTION:One part of a converged luminous flux is reflected by a knife edge prism 20 as an optical path separating means and the rest of it is made incident on a 1/2 wavelength plate 22. The luminous flux which passes through the wavelength plate 22 passes through a Wollaston prism 24 further and is made incident on a light receiving element 26. The other luminous flux reflected by the knife edge prism 20 is made incident on a light receiving element 30 through a cylinder lens 28. A converging lens 18, the 1/2 wavelength plate 22, the Wollaston prism 24 and the light receiving element 26 constitute a first detecting means, the cylinder lens 28, the light receiving element 30 and the converging lens 18 constitute a second detecting means, the focus servo signal and the magneto-optical signal are detected by the first detecting means and the track servo signal is detected by the second detecting means. Thus, the environmental resistance and the durability are made excellent and the reliability can be heightened.
Patent JP-S61286860-A (JP)
Title: Method for controlling stop of recording operation of electrophotographic printer
Inventor: MIYAZAKI SUSUMU
IPC: G03G21/14
Filed: 1985-06-14
Abstract: PURPOSE:To eliminate the stain of a recording medium, etc. by irradiating the surface of a photosensitive body for the prescribed period after the point of the time when the part of the photosensitive body surface arrives at the position facing an optical writing head and stopping the rotation of the photosensitive body upon lapse of the prescribed time after the point of the time when the charge-annihilated part of the surface faces a developing device. CONSTITUTION:The surface of the photosensitive body 1 is irradiated for the prescribed period by the light source of the optical writing head 3 upon lapse of the prescribed time after a high voltage power source 8 for primary electrostatic charging is turned off in the stage of stopping the recording operation. A power source 9 for developing bias is turned off at the point of the time when the charge-annihilated part on the surface of the body 1 arrives at the developing device 4. The rotation of the body 1 is stopped upon lapse of the prescribed time after said point of the time. The removal and recovery of the toner sticking to the surface of the photosensitive body by a cleaning mechanism 7 during the time until the photosensitive body is stopped after the bias power source for development is turned off are thereby permitted.
Patent JP-H10308346-A (JP)
Title: Projection exposure and manufacture of semiconductor device using projection exposure
Inventor: KATO MASANORI
IPC: G03F7/20
Filed: 1997-05-01
Abstract: PROBLEM TO BE SOLVED: To make it possible to perform superposition exposure accurately by a method wherein a negative plate is arranged at a position conjugate roughly to a conjugate position on the substrate and the marks on the negative plate are subjected to projection exposure on the substrate via a projection optical system independently of the prescribed pattern. SOLUTION: In each reticle, such as a reticle 121, a real pattern is formed on a projection exposure region arranged in the center part of the reticle. Two reticle alignment marks are formed at a place on the prescribed conjugate surface of the reticle 121 separately to a certain degree from the real pattern. Then, these marks are observed to decide the position of the reticle. Then, the reticle 121 and the like are illuminated via an illuminating optical system 100 and the pattern on the reticle is transferred on a plate 2O2 placed on a conjugate position on a substrate 201 by a projection optical system 112.
Patent JP-S62290304-A (JP)
Inventor: TAKAHASHI MINEO
IPC: H02G3/30
Filed: 1986-06-04
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H06320042-A (JP)
Title: Vehicle for treating empty container such as empty bottle
Inventor: AKISHIKA OSAMU
IPC: B60P3/00
Filed: 1993-04-30
Abstract: PURPOSE:To increase a space for housing treated waste and to widen the floor area of the various devices necessary for an empty container treatment by installing a treating machine for empty container carried into the lower side at the terminal of a carrying-in conveyor and installing a hopper for treated waste in the lower space of this carrying-in conveyor. CONSTITUTION:This vehicle for treating empty containers such as empty bottles is obliquely installed with the carrying-in conveyor 11 for carrying in the charged empty containers 13 so as to raise its terminal side on a vehicle body. A treating machine 18 for treating the carried in empty containers 13 is installed on the lower side at the terminal of the carrying-in conveyor 11 and a hopper 22 for housing the treated waste treated by the treating machine 18 is installed to the lower space of the carrying-in conveyor 11. The empty container 13 carried in by the carrying-in conveyor 11 are treated by the treating machine such as crushing machine 18 and the treated waste is transferred and housed into the hopper 22 on the vehicle body and are finally discarded or transferred outside. The lower space formed along the inclination of the carrying-in conveyor 11 is thus effectively utilized.
Patent JP-S5555191-A (JP)
Title: Dihydropyranopyrazolidine derivative and its preparation
Inventor: YAMAGUCHI HISAO
IPC: C07D491/052
Filed: 1978-10-20
Abstract: NEW MATERIAL:A 1,2-diphenyl-dihydropyrano[2,3-c]pyrazolidine derivative of formula I (X 1 , 2  are H, halogen, lower alkyl, lower alkyloxy, or hydroxyl, provided that one of X 1  and X 2  is H).  
     EXAMPLE: 1,2-Diphenyl-3-oxo-5-hydroxy-6,6-dimethyl-5,6-dihydropyrano[2,3-c]- pyrazolidine.  
     USE: Drug having antiphlogistic and blood platelet coagulation activities.  
     PROCESS: The compound I is prepared by reacting a compound II (X is H, halogen, lower alkyl, lower alkyloxy, or OH), e.g. 1,2-diphenyl-3,5-dioxo-(2',3'-dioxo-3'- methyl)-butyl-pyrazolidine, with a base such as NaOH, in a solvent such as water or methanol, at 0W100°C. The compound II is novel, and can be obtained by reacting a compound III with a peroxide. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S6021106-A (JP)
Title: Edger rolling method of plate material
Inventor: KOKUBO ICHIROU
IPC: B21B13/06
Filed: 1983-07-13
Abstract: PURPOSE:To prevent floating-up of a rolling material during cross rolling and to improve the dimensional accuracy of the width in the stage of rolling the rolling material while adjusting the width thereof with a cross rolling stand by working preliminarily the width in the end edge parts on both lower sides of the rolling material smaller than the upper side end edges. CONSTITUTION:Corner parts C1 are machined off at a thickness (h) and width W at the side edges on both lower sides of a rolling material S such as a steel slab or the like in the stage of cross rolling said material S with a cross rolling stand having a pair of vertical rolls. Or stepped parts C2 are formed at the thickness (h) and the width W or tapered surfaces C3 are preliminarily formed at the width W and an angle theta. In either case the material S is preliminarily worked to have WT>WB between the upper width WT and lower width WB of said material. If such material S is cross-rolled with a pair of vertical rolls, the floating-up on one side of the material S is eliminated and is cross-rolled to the steel plate having excellent dimensional accuracy of the width.
Patent JP-H09308353-A (JP)
Title: Leaf vegetable harvester
Inventor: TERAMOTO SEIJI
IPC: A01D45/28
Filed: 1996-05-23
Abstract: PROBLEM TO BE SOLVED: To provide a leaf vegetable harvester capable of surely plucking various leaf vegetables having different thicknesses without damaging them, improving a working efficiency and useful for harvesting a spinach, etc., by making the height above the ground of up and down conveyers in left and right freely adjustable as one unit. SOLUTION: This leaf vegetable harvester is obtained by supporting a functional part with a traveling part capable of self-traveling, and constituted by arranging in an order from front direction, a weed separating part F for guiding leaf vegetables V planted in a field, a root cutting part G for cutting the roots of the vegetables V, a conveying part tilting as low in front and high in rear, for plucking the leaf vegetables V of which root parts are cut by the root cutting part G from the field and conveying the same to the rear direction, and a housing part K housing the leaf vegetables conveyed by the conveying part, constituting the conveying part with a left and right pair of up and down conveyors M1, M2 made from a soft material capable of nipping the leaf vegetables V from both left and right sides, and also making the up and down conveyers in left and right M1,  M2 freely adjustable as one unit or each individually. Further, the rear end of the conveyer M1 is preferably extended further from the rear end of the conveyer M2.
Patent JP-H07332495-A (JP)
Title: Piston ring for internal combustion engine
Inventor: YOSHIDA HIDEKI
IPC: F02F5/00
Filed: 1994-06-10
Abstract: PURPOSE:To prevent lowering of airtightness of the inner wall of a cylinder by a method wherein a resilient substance is arranged at the abutment part of a ring body and a ring body is radially expanded through the resilient force thereof. CONSTITUTION:The outer peripheral surface 2 of a ring body 1 forms a barrel face type and has an abutment part 6 consisting of a pair of protrusions 1a. Further, a coil spring 5 formed of a wire rod for a spring formed in an oblong shape or an oval shape in modified cross section is arranged between notch parts 4 formed in the abutment part 6 and positioned facing each other. A pair of end parts 5a are brought into contact with respective corresponding notch parts 4. When, after the ring body 1 is mounted on the ring groove of a piston, a piston is arranged in a cylinder, the notch parts 4 are pressed in a peripheral direction through the force of the spring 5. Thereby, airtightness between the ring body 1 and the cylinder is ensured.
Patent JP-H08305098-A (JP)
Title: Image forming device
Inventor: ENDO SAIJIRO
IPC: B41J13/00
Filed: 1995-04-28
Abstract: PURPOSE: To form an image according as the carrying state of a sheet is changed by presuming the carrying state of the sheet based on the signals of plurally provided means detecting the position of the sheet in a direction orthogonally crossed to the advancing direction of the sheet and controlling the image forming position of the sheet according to the presumption. CONSTITUTION: The carrying state of the sheet is presumed based on the signals of the means provided at two or more places and set for detecting the position of the sheet in the direction orthogonally crossed to the advancing direction of the sheet. According to the presumption, the image forming position of the sheet is controlled. In such a case, a slit 24c provided on a sensor lever 23 is passed through the light receiving part of a photosensor 26 by the number of times corresponding to the turning distance of the lever 23 in accordance with the turning action of the lever 23. Therefore, the position of a pin 23b provided on the lever 23 can be recognized only by detecting how many times the light receiving part is shielded. Then, the position of the end part of the sheet is detected. Besides, since the same action is executed by an upstream unit in the carrying direction of the sheet, two places of end part of the sheet are detected by performing the sheet end part detecting action once.
Patent JP-H02310393-A (JP)
Title: Device for plating semiconductor substrate
Inventor: ITO NAOYA
IPC: C25D5/08
Filed: 1989-05-22
Abstract: PURPOSE:To carry out entire treatment with the same device at the time of pretreating, plating and post-treating a semiconductor substrate while conveying the substrate from a loader to an unloader as a sheet in the semiconductor substrate plating device by fixing the substrate to the vacuum-suction chuck of a cathode and allowing a processing soln. to flow between the cathode and an anode. CONSTITUTION:A semiconductor substrate 401 to be plated is fixed to the vacuum- suction chuck 402 with the surface to be plated turned upward in a cup 409, the substrate 401 is moved up and down by the vertical movement and rotation of a shaft 403, and the substrate is previously cleaned by the pure water from a pure water nozzle 427. The anode 415 is lowered on the substrate 412 by a cylinder 420, a plating soln. in a tank 422 is supplied between the anode 415 and the substrate 401 from a nozzle 426, a current is applied from a DC power source 431, and the surface of the substrate 401 is plated. The anode 415 is then raised, and pure water is injected from the nozzle 427 to clean the plated surface of the substrate 401 which is then dried. Since the semiconductor substrate 401 is pretreated, plated and post-treated with the same device, the entire process of plating is carried out with a small number of equipment.
Patent JP-S5755033-A (JP)
Title: Sealing jig
Inventor: FUKUMOTO TERUO
IPC: H01J9/40
Filed: 1980-09-19
Abstract: PURPOSE:To prevent the damage of a funnel part, by supporting with a funnel retainer, the funnel part of a bulb where a pad of the panel part touches a positioning post and by interposing a low friction member between the funnel-retainer and the fixed part. CONSTITUTION:Three positioning posts 61, 62, 63, are attached to a head main body which is fixed on a jig-for-sealing-substrate, the pad of a panel 1 is forced to touch it, and the bulb 4 is fixed by a bulb-retainer 7. Also, the funnel-retainer 12 is slidably attached to a fixed port 11 through a supporting member 14 which is movably fitted to a ball 13. The inclined plane of the funnel 2 of the bulb 4 can be supported, by this funnel retainer 12. Threby, the positioning of the panel can be performed without damaging the funnel.
Patent JP-H09293254-A (JP)
Title: Optical pickup and optical disk device
Inventor: TSUKAHARA NOBUHIKO
IPC: G11B7/09
Filed: 1996-04-25
Abstract: PROBLEM TO BE SOLVED: To enable the reading of information till the innermost periphery of tracks of an optical disk by preliminarily prolonging a center line for objective lens supporting in a direction separating away from a motor for driving at the stationary state of a biaxial actuator for an objective lens. SOLUTION: When a virtual center line VL is drawn from the center of the objective lens 14 of a biaxial actuator 10 toward a sliding shaft 13 being in a supporting side, this virtual center line VL is prolonged in a direction separating away gradually from a spindle motor 26. Then, this optical pickup is made so tint when the objective lens 14 is moved to the left end of a tracking stroke, the objective lens 14 can converge a light beam on the innermost periphery of an optical disk D. Consequently, the optical disk D made to cope with a high density recording is rotatingly driven by the spindle motor 26 having a large diameter.
Patent JP-H06341889-A (JP)
Title: Load cell balance
Inventor: MASUYAMA TSUTOMU
IPC: G01G23/01
Filed: 1993-05-31
Abstract: PURPOSE:To reduce working process by providing a weight presence judging means for judging if a specific load is applied to a load cell, a span storage means, a weight absence judging means, and a zero point recording means. CONSTITUTION:When a setting key 6 is input, a weight presence judging means judges whether a specific load is applied to a load cell 4 or not. When it is judged that the specific load is applied o the load cell 4, the output of the load cell 4 is stored as span data. Then, a weight absence judging means judges whether a load is applied to the load cell 4 or not. When it is judged that no load is applied to the load cell 4, the output of the load cell 4 is stored as zero data, thus inputting the span data and zero data continuously by operating the setting key 6 once and hence reducing working man-hour.
Patent JP-S5254480-A (JP)
Title: Ultraviolet ray absorption meter with mechanism preventing ozone gener ation
Inventor: KIHANA HIROMITSU
IPC: G01N21/33
Filed: 1975-10-29
Abstract: PURPOSE:A part or the whole of the surroundings of an optical path form a light source to a slit is covered with a material that does not allow transmission of ultraviolet rays, whereby leakage of the ultraviolet rays to places other than required positions is prevented and the ozonization of oxygen in air is prevented.
Patent JP-S5919390-A (JP)
Inventor: TSUNOHASHI TAKESHI
IPC: H05K1/02
Filed: 1982-07-23
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。